Continuous paper pulp molding honeycomb plate production process and continuous paper pulp molding honeycomb plate production device

Abstract

The invention relates to a continuous paper pulp molded honeycomb plate production process, which comprises the following steps of: 1, pouring prepared pulp into a pulp tank; 2, the double-roller type drum-shaped machine A sucks the pulp in the pulp pool to a pulp molding device A for preliminary molding, water is squeezed out, and a molded pulp molded product is moved to a conveying belt; step 3, drying; step 4, shaping: the dried paper pulp molded product is conveyed to a double-roller drum-shaped machine D and a double-roller drum-shaped machine E, and the mold is in contact with the paper pulp molded product through rotation to complete shaping; the device for the production process comprises a slurry suction forming device, a drying channel device and a shaping device, the double-roller type drum-shaped machine A and the double-roller type drum-shaped machine B form a pulp suction forming device; the double-roller type drum-shaped machine A is connected with the water squeezing device; a drying channel device is arranged at the transfer position of the molded pulp; the double-roller type drum-shaped machine D realizes shaping above the conveying belt; the device has the characteristics of manpower saving, cost reduction and high production efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of pulp molding, and in particular relates to a continuous pulp molding honeycomb plate production process and device. Background Art

[0002] At present, the development and production of pulp molded products cannot be separated from the reliance on customized molds, and economic benefits can only be achieved after the production batch reaches a certain scale. This limits the development of the pulp molding industry. As we all know, pulp molded products have the advantages of low carbon, environmental protection, and degradability. The development of continuous pulp molded honeycomb panels can effectively solve the current limitations on molds and production batches caused by the customized production mode of pulp molded products, and further reduce the cost of use. In terms of product performance and industrialization, pulp molded honeycomb products can be easily made into a variety of series such as regular n-gon honeycombs with different heights, wall thicknesses and aperture ratios, and have the advantages of high dimensional accuracy and stable mechanical properties, which will accelerate the industrial application of honeycomb materials and related research results. The panels made of this material can be used in heavy pallets, various product outer packaging containers, and internal buffers through cutting, assembly and other methods. Summary of the invention

[0003] In order to overcome the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a pulp molded honeycomb panel production process and device. The present invention realizes the systematic production of pulp molded honeycomb panels by realizing automated industrial production of the pulp molded honeycomb panel production process. The steps of the process are closely linked, so that more processes that require manpower and time can be replaced by machines. The pulp molded honeycomb panel structure is universal, has the characteristics of reducing a large amount of manpower and time costs and realizing the mechanized production of pulp molded honeycomb panel technology.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is: A pulp molded honeycomb board production process comprises the following steps: Step 1, pulping, the specific steps are: Pulping is carried out in a pulping tank, and the prepared slurry is poured into the pulping tank; Step 2, molding, the specific steps are: The roller-shaped machine A is immersed in the pulp pool of step 1, and the roller-shaped machine B is above the roller-shaped machine A. The roller-shaped machine A absorbs the pulp in the pulp pool to the pulp molding device A when passing through the vacuum chamber to complete the initial molding work. The water squeezing device C squeezes the water in the pulp sucked by the roller-shaped machine A, and the roller-shaped machine B transfers the pulp molded product formed on the roller-shaped machine A to the conveyor belt by gravity. Step 3, drying, the specific steps are: The pulp molded product formed in step 2 is transported to a drying channel through a conveyor belt for drying in hot air at 180-220°C; Step 4, integer, the specific steps are: The pulp molded product after drying in step 3 is transferred to the positions of the double-roll drum machine D and the double-roll drum machine E through a conveyor belt. The double-roll drum machine D and the double-roll drum machine E identify the product position through electronic identifiers A and B, and rotate to make the mold on the machine contact with the pulp molded product on the conveyor belt to complete the shaping.

[0005] A device for pulp molded honeycomb board production process, including a slurry suction molding device and an upper drying device and a lower drying device; the slurry suction molding device includes a roller-type drum-shaped machine A located in a slurry pool, the upper left side of the roller-type drum-shaped machine A is rotatably connected to a roller-type drum-shaped machine B; the upper right side of the roller-type drum-shaped machine A is rollingly connected to a moisture squeezing device; the upper drying device and the lower drying device are arranged on the left side of the transfer position of the pulp molding on the roller-type drum-shaped machine A; the roller-type drum-shaped machine D and the roller-type drum-shaped machine E shaping device are arranged on the left side of the upper drying device and the lower drying device.

[0006] A pulp molding device A is provided on the outer wall of the double-roll drum-shaped machine A; a pulp molding mold B is provided on the outer wall of the double-roll drum-shaped machine B; a pulp molding mold D is provided on the outer wall of the double-roll drum-shaped machine D; a pulp molding mold E is provided on the outer wall of the double-roll drum-shaped machine E. The pulp molding device A, the pulp molding mold C, and the pulp molding mold D have the same structure as the pulp molding mold E.

[0007] A pulp molding mold C is provided on the outer wall of the water squeezing device, and the pulp molding mold C and the pulp molding device A squeeze each other.

[0008] The pulp molding mold, pulp molding device A, pulp molding mold C and pulp molding mold B have the same structure; the pulp molding device A is a vacuum couch roll device.

[0009] The double-roller drum-shaped machine A, the double-roller drum-shaped machine B, the double-roller drum-shaped machine D and the double-roller drum-shaped machine E are all driven by motors.

[0010] The moisture squeezing device C is a chain device.

[0011] Since the formed pulp molded products usually contain high moisture, they need to be processed through a drying process to ensure their performance and quality. The formed pulp molded products are transported to the drying channel through a conveyor belt. The drying channel uses electricity as a heat source to heat the air and dry the formed pulp molded products in hot air at 180~220℃.

[0012] The dried pulp molded honeycomb board structure is transported to the cutting device via a conveyor belt.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1) The present invention has the characteristic of making pulp molding production into serialized production because it integrates the pulp suction, forming, shaping and drying processes.

[0014] 2) The present invention shortens the production cycle of pulp molding due to the adoption of mechanical integrated production.

[0015] 3) The present invention adopts the periodic production of pulp molding, thus laying a foundation for the automated production of pulp molding.

[0016] The automated production process of pulp molded honeycomb panels of the present invention is applicable to various fields such as industrial product cushioning packaging, handicrafts, medical utensils, paper furniture, etc. The present invention allows more processes that consume manpower and time to be replaced by machines, and its pulp molded honeycomb panel structure is universal, has the characteristics of reducing a large amount of manpower and time costs, and realizes the mechanized production of pulp molded honeycomb panel technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of the device used in the production process of pulp molded honeycomb panels of the present invention.

[0018] Figure 2 It is a schematic structural diagram of the double-roll drum-shaped machine A of the present invention.

[0019] Figure 3 Produce renderings for pulp molded products.

[0020] In the figure: 1-pulp suction molding device; 2-pulp pool; 3-roller drum machine A; 4-pulp molding mold A; 5-pulp molding mold B; 6-moisture extrusion device; 7-roller drum machine B; 8-pulp molding mold B; 9-top pulp molding board; 10-product transfer position; 11-upper drying device; 12-product; 13-conical thin-walled tube; 14-bottom pulp molding board; 22-rotating rubber roller; 23-pulp molding mold D; 24-electronic identifier A; 25-roller drum machine D; 26-pulp molding mold E; 27-roller drum machine E; 28-electronic identifier B; 29-roller conveyor belt; 30-lower drying device. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited to the following embodiments. The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0022] A pulp molded honeycomb board production process comprises the following steps: Step 1, pulping, the specific steps are: Pulping is performed in a pulping tank, and the prepared pulp is poured into a pulp tank 2; Step 2, molding, the specific steps are: There are two sets of identical forming equipment in the forming step, which divide the roller-shaped machines in the forming process into roller-shaped machines A3 and roller-shaped machines B7, and a device C responsible for squeezing out moisture; the roller-shaped machines A3 and B7 are both equipped with pulp molding molds of equal quantity and in the same position; the roller-shaped machine A is immersed in the pulp pool, and the roller-shaped machine B7 is above the roller-shaped machine A3. The function of the roller-shaped machine A3 is to absorb the pulp onto the mold to complete the molding work. The water squeezing device C squeezes the water of the pulp absorbed by the roller-shaped machine A through mechanical action. The function of the roller-shaped machine B7 is to transfer the pulp molded products formed on the roller-shaped machine A3 from the roller-shaped machine A3 to the roller-shaped machine B7 through the roller structure, and then transfer them to the conveyor belt at the bottom of the roller-shaped machine B7 through the gravity factor. The roller-shaped machine A, the roller-shaped machine B, the water squeezing device, the conveyor belt, the roller-shaped machine D25 and the roller-shaped machine E27 are all driven by electricity, and the speed is 100-300 revolutions per minute. Step 3, drying, the specific steps are: Since the molded pulp molded products contain a high amount of water, they need to be dried to ensure their performance and quality. The molded pulp molded products are transported to a drying channel via a conveyor belt. The drying channel uses electricity or the like as a heat source to heat the air. The pulp molded products formed in step 2 are transported to the drying channel via a roller conveyor belt 29, and are dried in hot air at 180-220° C. via an upper drying device 11 and a lower drying device 30. The dried pulp molded products are then transported to a shaping process via a conveyor belt to improve their strength and performance. Step 4, integer, the specific steps are: The pulp molded product after drying in step 3 is transferred to the positions of the double-roll drum machine D25 and the double-roll drum machine E27 through a conveyor belt. The double-roll drum machine D25 and the double-roll drum machine E27 identify the product position through the electronic identifier A24 and the electronic identifier B28 (electronic positioning device), and rotate to make the mold on the machine contact with the pulp molded product on the conveyor belt to complete the shaping.

[0023] Set the working parameters of the roller drum machine A3, including the air pressure and speed of the internal equipment required for slurry suction, start the operation of the roller drum machine B7 and the moisture extrusion device 6 connected to the roller drum machine A3, adjust the speed to be consistent, until the first batch of pulp molded products produced by the equipment arrives at the conveyor belt at position 10 of the roller drum machine B7, adjust the temperature of the drying channel, check whether the quality of the pulp molding produced meets the standards, if it meets the standards, the adjustment parameters remain unchanged, if not, continue to adjust the parameters until it meets the standards, then unify the parameter settings and start serial production; all operation processes are set by PLC time and automatically controlled, including molding process, product drying process, shaping process, etc., which can all be achieved through setting.

[0024] There are two groups of identical molding equipment in the molding step, which divide the double-roll drum machine in the molding process into double-roll drum machine A3 and double-roll drum machine B7, and a moisture squeezing device 6 responsible for squeezing moisture; the double-roll drum machine A3 and the double-roll drum machine B7 are both equipped with pulp molding molds of equal number and in the same position.

[0025] A device for pulp molded honeycomb board production process, including a pulp suction molding device 1 and a drying channel device 11; the pulp suction molding device 1 includes a double-roll drum-shaped machine A3 located in a pulp pool, the upper left side of the double-roll drum-shaped machine A3 is rotatably connected to the double-roll drum-shaped machine B7; the upper right side of the double-roll drum-shaped machine A3 is rollingly connected to the water squeezing device 6; the drying channel device 11 is provided on the left side of the transfer position 10 of pulp molding on the double-roll drum-shaped machine A3; the double-roll drum-shaped machine D25 and the double-roll drum-shaped machine E27 shaping device are provided on the left side of the drying channel device 11.

[0026] A pulp molding mold A4 is provided on the outer wall of the double-roll drum-shaped machine A3; a pulp molding mold B8 is provided on the outer wall of the double-roll drum-shaped machine B7; a pulp molding mold D23 is provided on the outer wall of the double-roll drum-shaped machine D25; the pulp molding mold A4 and the pulp molding mold B8 and the pulp molding mold D23 and the pulp molding mold E26 have the same structure.

[0027] A pulp molding mold C5 is provided on the outer wall of the chain device 6, and the pulp molding mold C5 and the pulp molding device A4 are pressed against each other.

[0028] The pulp molding device A4, the pulp molding mold C5 and the pulp molding mold B8 have the same structure, and are all vacuum couch roll devices.

[0029] The double-roller drum-like machine A3, the double-roller drum-like machine B7, the double-roller drum-like machine D25 and the double-roller drum-like machine E27 are all driven by motors.

[0030] The moisture squeezing device is in a chain shape.

[0031] The drying passage is composed of an upper drying device 11, a conveyor belt and rollers 29, and a lower drying device 30. The upper drying device 11 is arranged on the left side of the transfer position (10) of the pulp molding on the roller-type drum machine A (3), and the conveyor belt and rollers 29 and the lower drying device 30 are located below the upper drying device 11.

[0032] The pulp molded honeycomb board structure is a pulp molded hexagonal honeycomb structure assembled by staggered plug-in. The process of the pulp molded hexagonal honeycomb structure from the forming device to the final hot pressing shaping device is serialized to achieve automated production. Its slurry suction molding device includes a pulping pool and a double-roll drum-shaped machine A (the double-roll drum-shaped machine A adopts a vacuum roller device). The double-roll method has two roller-shaped machines that are connected to an external power supply to work. In addition, a ring-shaped structure of a pulp molding mold of the same size is installed above, which is responsible for squeezing out excess moisture (the double-roll drum-shaped machine A3 is double-roll-linked with the moisture squeezing device 6. After the slurry is adsorbed on the double-roll drum-shaped machine A3, the pulp molding mold C5 on the moisture squeezing device 6 is connected to the suction mold by the rotation of the machine. The slurry attached to the roller-shaped machine A3 contacts and rotates relatively to squeeze out water. The roller-shaped machine A and the roller-shaped machine B are both equipped with pulp molding molds of equal number and same position; the roller-shaped machine A is immersed in the slurry pool, and the roller-shaped machine B is installed above the roller-shaped machine A. The roller-shaped machine A immersed in the slurry pool absorbs the slurry on the pulp molding mold thereon by rotating, and the roller-shaped machine B is responsible for transferring the formed pulp molding products by rotating.

[0033] Since the formed pulp molded products usually contain high moisture, they need to be processed through a drying process to ensure their performance and quality. The formed pulp molded products are transported to the drying channel through a conveyor belt. The drying channel uses electricity as a heat source to heat the air and dry the formed pulp molded products in the hot air at 180~220℃ in the drying channel.

[0034] The dried pulp molded honeycomb board structure is transported to the cutting device via a conveyor belt.

[0035] refer to Figure 1-3 , by realizing automated industrial production of pulp molded honeycomb panel production process, wherein 1~12 and 22~30 are main functional structures of each process in the pulp molding production process, the conical thin-walled tube 13, the bottom pulp molded panel 14 and the top pulp molded panel 9 refer to the panel structure in the pulp molding production process of the present invention, the present invention realizes the systematic production of pulp molded honeycomb panels, and the process steps are closely linked.

[0036] See also Figure 1The slurry suction molding device 1 adopts a vacuum roller, which uses the felt attached to the roller body and the roller body guide groove, and cooperates with the vacuum force to absorb the paper and fix it on the roller-type drum-shaped machine A3. It is also equipped with a rotating rubber roller 22, based on the effect of gas pressure difference. When the vacuum pump extracts the air under the roller surface to form a lower air pressure area, the surrounding atmospheric pressure tightly absorbs the material on the roller surface. This adsorption force can effectively fix the material, prevent it from shifting or wrinkling during the processing process, ensure the accuracy and stability of production, and is conducive to the roller-type drum-shaped machine A3 to maintain the vacuum state of slurry suction during the rotation process. The pulp pool 2 is used to manufacture raw materials. The pulp is adsorbed on the mold by the vacuum roller 1. Then, the pulp adsorbed by the pulp molding mold A4 fixed on the outside of the roller-type drum-shaped machine A3 is transferred out of the pulp pool by counterclockwise rotation. Then, the pulp molding mold C5 on the device and the pulp molding mold A4 on the roller-type pulp molding device A3 are squeezed out of the pulp on the pulp molding device A4 by mechanical action through the roller structure by the roller structure. Then, the pulp reaches the pulp molding mold B8 by rotation. The pulp molding on the roller-type drum-shaped machine A3 is transferred to the roller-type drum-shaped machine B7 through the roller-type mold structure. The shaping machine B7 rotates clockwise and reaches the product transfer position 10. Due to the gravity factor, the pulp molding is transferred to the conveyor belt, and then reaches the drying device 11 and the drying device 30 below through the conveyor belt and roller 29, and is dried in hot air at 180~220℃. After drying, it passes through the conveyor belt to the position of the double-roller drum shaping machine D25. The double-roller drum shaping machine D25 rotates clockwise and the double-roller drum shaping machine E27 rotates counterclockwise. Through the electronic positioning device electronic identifier A24 and the electronic identifier B28, the pulp molding mold E26 and the pulp molding mold D23 are in contact with the pulp molded product and the shaping is completed, and then it reaches the cutting device 12.

[0037] Figure 2 This is a simplified illustration of a roller-type device, which involves a pair of roller-type drum-shaped machines A3 and a pulp molding device A4. The pulp molding device A4 is embedded in the pair of roller-type drum-shaped machines A3 by differentiation, and the differential molds are the same.

[0038] See also Figure 3 The universal hexagonal honeycomb pulp molding assembled by staggered plug-in includes a bottom pulp molded plate 14 and a top pulp molded plate 9. An array of conical thin-walled tubes 13 are arranged on the lower side of the bottom pulp molded plate 14; an array of conical thin-walled tubes 13 are arranged on the upper side of the top pulp molded plate 9; the bottom pulp molded plate 14 and the top pulp molded plate 9 are connected by the conical thin-walled tubes 13 being staggered and plugged in.

[0039] The working principle of the present invention is: The prepared pulp is poured into the pulp tank, and the pulp is adsorbed on the mold by the vacuum roller 1, and then the pulp adsorbed by the pulp molding device A4 fixed on the outside is transferred out of the pulp pool by the counterclockwise rotation of the double-roll drum-shaped machine A3, and then the pulp molding mold C5 on the device and the pulp molding mold A4 on the roller-type pulp molding device 3 are squeezed out of the pulp molding device A4 by the pulp molding mold C5 through the double-roll structure through the moisture extrusion device 6, and then the pulp molding mold C5 is used to squeeze out the moisture of the pulp on the pulp molding device A4 through the mechanical action, and then it reaches the pulp molding mold B8 through rotation, and the pulp molding on the pulp molding mold 3 is transferred to the double-roll drum-shaped machine B7 through the double-roll drum-shaped machine B7. The double-roll drum-shaped machine B7 rotates clockwise to reach the transfer position 10, and the pulp molding is transferred to the conveyor belt due to gravity, and then to the upper drying device 11 through the conveyor belt and roller 29. The paper pulp is dried in hot air at 180-220°C in the drying device 30. After drying, it passes through the conveyor belt to the roller-shaped machine D25 and the roller-shaped machine E2 position 7. The roller-shaped machine D25 rotates clockwise and the roller-shaped machine E27 rotates counterclockwise. The electronic positioning device electronic identifier A24 and the electronic identifier B28 make the pulp molding mold E26 and the pulp molding mold D23 contact with the pulp molded product and complete the shaping, and then arrive at the cutting device 12.

Claims

1. A pulp molded honeycomb board production process, characterized in that: The following steps are involved: Step 1, pulping, the specific steps are: Pulping is performed in a pulping tank, and the prepared slurry is poured into the pulping tank (2); Step 2, molding, the specific steps are: The roller-shaped machine A is immersed in the pulp pool of step 1, and the roller-shaped machine B is above the roller-shaped machine A (3). The roller-shaped machine A (3) sucks the pulp in the pulp pool to the pulp molding device A (4) when passing through the vacuum chamber to complete the initial molding work. The water squeezing device (6) squeezes the water in the pulp sucked by the roller-shaped machine A, and the roller-shaped machine B transfers the pulp molded product formed on the roller-shaped machine A to the conveyor belt by gravity. Step 3, drying, the specific steps are: The pulp molded product formed in step 2 is transported to a drying channel through a conveyor belt for drying in hot air at 180-220°C; Step 4, integer, the specific steps are: The pulp molded product after drying in step 3 is transferred to the positions of the double-roll drum machine D and the double-roll drum machine E through a conveyor belt. The double-roll drum machine D and the double-roll drum machine E identify the product position through electronic identifiers A (24) and B (28), and rotate to make the mold on the machine contact with the pulp molded product on the conveyor belt to complete the shaping.

2. A device for pulp molded honeycomb board production process, characterized in that: The invention comprises a pulp suction molding device (1) and an upper drying device (11) and a lower drying device (30); the pulp suction molding device (1) comprises a roller-type drum-shaped machine A (3) located in a pulp pool, the upper left side of the roller-type drum-shaped machine A (3) is rotatably connected to a roller-type drum-shaped machine B (7); the upper right side of the roller-type drum-shaped machine A (3) is rollably connected to a moisture squeezing device (6); the upper drying device (11) and the lower drying device (30) are arranged on the left side of the transfer position (10) of pulp molding on the roller-type drum-shaped machine A (3); and the roller-type drum-shaped machine D (25) and the roller-type drum-shaped machine E (27) shaping devices are arranged on the left side of the upper drying device (11) and the lower drying device (30).

3. The device for pulp molded honeycomb board production process according to claim 2, characterized in that: The outer wall of the double-roll drum-shaped machine A (3) is provided with a pulp molding device A (4); the outer wall of the double-roll drum-shaped machine B (7) is provided with a pulp molding mold B (8); the outer wall of the double-roll drum-shaped machine D (25) is provided with a pulp molding mold D (23); the outer wall of the double-roll drum-shaped machine E (27) is provided with a pulp molding mold E (26). The pulp molding device A (4), the pulp molding mold C (8) and the pulp molding mold D (23) have the same structure as the pulp molding mold E (26).

4. The device for pulp molded honeycomb board production process according to claim 2, characterized in that: A pulp molding mold C (5) is provided on the outer wall of the chain-shaped device (6), and the pulp molding mold C (5) and the pulp molding device A (4) are pressed against each other.

5. The device for pulp molded honeycomb board production process according to claim 2, characterized in that: The pulp molding mold, pulp molding device A (4), pulp molding mold C (5) and pulp molding mold B (8) have the same structure; the pulp molding device A (4) is a vacuum roller device.

6. The device for pulp molded honeycomb board production process according to claim 2, characterized in that: The double-roller drum-like machine A (3), the double-roller drum-like machine B (7), the double-roller drum-like machine D (25) and the double-roller drum-like machine E (27) are all driven by motors.

7. The device for pulp molded honeycomb board production process according to claim 2, characterized in that: The moisture squeezing device C is a chain device.

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